CN201184189Y - Network indicator for load and displacement of suspension point of oil pumping unit - Google Patents

Abstract

A network indicator for load and displacement of suspension point of pumping unit is used in oil field. Is characterized in that: the instrument box is internally provided with a microprocessor, a GPRS network communication module and an instrument battery, and the microprocessor is connected with the load sensing transmitter, the GPRS network communication module and the instrument battery through leads. The effect is as follows: the suspension point load, the displacement and the GPRS communication are combined into an electromechanical integrated network indicator. The load and displacement data of the well are collected and the stroke, the stroke frequency and the time rate data can be calculated. The indicator diagram and the working hour rate of the oil well can be monitored in a public network or a local area network. The instrument battery is used for supplying power, so that no external signal line or power line is provided, and the working modes of sampling storage and timing transmission are adopted due to the power-saving design. Can form a large-scale oil pumping machine monitoring system and has wide application prospect.

Description

Suspension point load and displacement network dynamometer of pumping unit

technical field

The utility model relates to the technical field of oil production in oil fields, in particular to a suspension point load and displacement testing device of a beam pumping unit, which is a network dynamometer which combines the suspension point load, displacement and GPRS communication into an electromechanical integration.

Background technique

In the oil field automation cluster monitoring system, the measurement of the dynamometer diagram of the pumping well mainly adopts the measurement method of the suspension point load and angular displacement of the polished rod. For example, the Chinese patent announcement number is CN2618194Y, which provides a kind of "intelligent pumping unit controller"; the Chinese patent announcement number is CN200964841Y, which provides a "oil well indicator diagram data acquisition device".

At present, a monitor installed in a single well collects the data of the dynamometer diagram and transmits it to the host computer through a digital radio, optical cable, GPRS or other methods. This way of monitoring pumping units requires the installation of sensors and monitors at different parts of the well. The installation and commissioning in the early stage requires specialized technicians, and the maintenance work in the later stage is also inseparable from technicians. When there are many oil wells in the monitoring system, the maintenance workload is heavy and the operating costs are also high.

Utility model content

The purpose of the utility model is to provide a network dynamometer for the suspension point load and displacement of the pumping unit, which combines the load sensing transmitter for monitoring the suspension point load and displacement of the pumping unit and the GPRS network communication module into an electromechanical integrated The network dynamometer can monitor the dynamometer diagram and working time rate of the well on the public network or local area network, and can directly complete the collection, processing, storage, centralized transmission of the dynamometer diagram and the function of judging the start and stop of the well. It overcomes the shortcomings of the existing single well installation monitor data collection and data upload, requiring maintenance staff in the later stage, heavy maintenance workload, and high operating costs.

The technical scheme adopted by the utility model is: it is mainly composed of a load sensing transmitter, a microprocessor and a GPRS network communication module, and the load sensing transmitter is fixed on the meter box, which is characterized in that: there is a microprocessor in the meter box Transmitter, GPRS network communication module and meter battery, the microprocessor is connected with the load sensing transmitter, GPRS network communication module and meter battery through wires.

The load sensing transmitter is composed of a conventional strain gauge bridge, amplifier U3, load zero point potentiometer W1, range zero point potentiometer W2 and resistor R1. The opposite ends of the strain gauge bridge are respectively connected to pin 2 and pin 2 of the amplifier U3. 3. The opposite ends of the strain gauge bridge are respectively connected to the instrument battery and the reference ground. The pin 1 and pin 8 of the amplifier U3 are respectively connected to the two ends of the range zero potentiometer W2, the pin 2 of the amplifier U3 is connected to the midpoint of the zero potentiometer W1, and the two ends of the load zero potentiometer W1 are respectively connected to the meter battery and the reference ground. The pin 6 of the amplifier U3 is connected to the pin 4 of the microprocessor through the resistor R1.

The microprocessor is connected by the single-chip microcomputer U1, the crystal oscillator JZ1, and the clock chip U2 through wires. The two pins of the crystal oscillator JZ1 are respectively connected with the pin 8 and pin 9 of the single-chip microcomputer U1, and the pin 5, pin 6, and Pin 7 is connected to pin 12, pin 13, and pin 14 of the single-chip microcomputer U1, pin 1 and pin 8 of the clock chip U2 are connected to the meter battery, pin 1 and pin 64 of the single-chip microcomputer U1 are connected to the meter battery, pin 63, pin 62, Pin 61 is connected to the reference ground. Pin 5 of the GPRS network communication module-U4 is connected to the reference ground, pin 6 of the GPRS network communication module-U4 is connected to the instrument battery, and the RF terminal of the GPRS network communication module-U4 is connected to the miniature antenna.

The utility model is beneficial in that: the suspension point load of the pumping unit and the displacement network dynamometer adopt a structural design integrating a load sensing transmitter, a micro-processing unit, a GPRS network communication module and an instrument battery, and can be based on the built-in astronomical clock. The dynamometer data is automatically collected regularly and stored. The micro-processing unit can monitor the change of the force sensor at any time to judge whether to stop the machine, and calculate the working hour rate of the machine. It can directly complete the collection, processing, storage and centralized sending of the dynamometer diagram.

The utility model adopts low power consumption components and a power supply control structure, and can work for a long time by using two meter batteries. The meter battery supplies power to GPRS and microprocessor respectively, so there is no external signal line and power line. For power-saving design, sampling storage and timing sending work mode are adopted.

Due to the use of the electromechanical integrated network dynamometer, it can be easily installed on the rope suspension of the pumping unit, and the load and displacement data of the well can be collected and the stroke, stroke times and time rate data can be calculated. Since the dynamometer map can be collected densely, it provides a necessary and sufficient condition for the dynamometer map to calculate the liquid production rate of a single well. The utility model is suitable for all pumping wells, especially suitable for oil fields in remote areas, scattered well groups, bad environment, lack of technical force and low investment. Installing the system constituted by the utility model does not require special technicians, and oil production workers can install it. Technicians can conduct debugging through the network thousands of miles away, so it can form a large-scale pumping unit monitoring system, which has wide application prospects.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the suspension point load and displacement network dynamometer of the pumping unit of the present invention.

Fig. 2 is the circuit diagram of the suspension point load and displacement network dynamometer of the pumping unit.

In the figure, 1. Load sensing transmitter, 2. Meter box, 3. Microprocessor, 4. GPRS network communication module, 5. Meter battery, 6 case covers.

Detailed ways

Embodiment 1: Taking a model of CYJ14-5.4-73 pumping unit suspension point load and displacement network dynamometer as an example, the utility model is further described in detail.

The load sensing transmitter 1 uses a conventional strain gauge bridge. What the microprocessor 3 adopts is MSP430F1612 single-chip microcomputer. And what GPRS network communication module 4 adopts is Landi communication LD6000. Meter battery 5 uses two lithium thionyl chloride ER34615H with a voltage of 3.6V. The instrument box 2 is 152×102×64 millimeters in length, width and height.

The load sensing transmitter 1 is fixed on the meter box 2, and the meter box 2 is fixed with a microprocessor 3, a GPRS network communication module 4 and a meter battery 5, and the casing cover 6 can ensure sealing after being covered. The microprocessor 3 is connected with the load sensing transmitter 1, the GPRS network communication module 4 and the meter battery 5 through wires.

The load sensing transmitter 1 includes a conventional strain gauge bridge, an amplifier whose model is U3AD623, the model of the load zero point potentiometer W1 and the range zero point potentiometer W2 is W3296, and the resistance R1 is 1K. The opposite ends of the strain gauge bridge are respectively connected to pin 2 and pin 3 of the amplifier U3, and the other opposite ends of the strain gauge bridge are respectively connected to the meter battery 5 and the reference ground. The pin 1 and pin 8 of the amplifier U3 are respectively connected to the two ends of the range zero potentiometer W2, the pin 2 of the amplifier U3 is connected to the midpoint of the zero potentiometer W1, and the two ends of the load zero potentiometer W1 are respectively connected to the instrument battery 5 and the reference ground. The pin 6 of the amplifier U3 is connected to the pin 4 of the microprocessor 3 through the resistor R1.

The microprocessor 3 is connected by the single-chip microcomputer U1, the crystal oscillator JZ1, and the clock chip U2 through wires. , pin 7 are connected to pin 12, pin 13, and pin 14 of the single-chip microcomputer U1, pin 1 and pin 8 of the clock chip U2 are connected to the meter battery 5, pin 1 and pin 64 of the single-chip microcomputer U1 are connected to the meter battery 5, pins 63, 8 of the single-chip microcomputer U1 Pin 62 and pin 61 are connected to the reference ground. Pin 5 of the GPRS network communication module 4-U4 is connected to the reference ground, pin 6 of the GPRS network communication module 4-U4 is connected to the instrument battery 5, and the RF terminal of the GPRS network communication module 4-U4 is connected to the micro antenna.

Using SMT surface mount technology, the GPRS network communication module 4 and the microprocessor 3 are integrated on a 90×60 mm circuit board by using ultra-small patch components, so as to realize miniaturization and improve practicability.

When using it, first investigate the network coverage of the area where it is used and purchase a GPRS network communication card. After configuring the GPRS parameters, it can be used. The utility model is installed on the rope suspension device of the pumping unit, and the direction should be paid attention to during installation, and it cannot be installed upside down. Just can receive each group of data that the utility model regularly sends through the network after being installed.

Claims (1)

1, a kind of oil pumper polished rod load, displacement network indicator, mainly form by load sensing transmitter (1), microprocessor (3) and GPRS network communication module (4), load sensing transmitter (1) is fixed on the instrument case (2), it is characterized in that: microprocessor (3), GPRS network communication module (4) and instrument battery (5) are arranged in the instrument case (2), and microprocessor (3) is connected with load sensing transmitter (1), GPRS network communication module (4) and instrument battery (5) by lead;

Load sensing transmitter (1) is made up of conventional strain gauge bridge, amplifier U3, load potentiometer at zero point W1, range potentiometer at zero point W2 and resistance R 1, the two ends that strain gauge bridge is relative connect pin 2, the pin 3 of amplifier U3 respectively, and the other relative two ends of strain gauge bridge connect instrument battery (5) and reference ground respectively; The pin 1 of amplifier U3, pin 8 connect the two ends of range potentiometer at zero point W2 respectively, the mid point of the pin 2 connecting to neutral point potentiometer W1 of amplifier U3, and the two ends of load potentiometer at zero point W1 connect instrument battery (5) and reference ground respectively; The pin 6 of amplifier U3 connects the pin 4 of microprocessor (3) by resistance R 1;

Microprocessor (3) is linked to each other by lead with clock chip U2 by single-chip microcomputer U1, crystal oscillator JZ1 and is connected into, the bipod of crystal oscillator JZ1 is connected with pin 8, the pin 9 of single-chip microcomputer U1 respectively, the pin 5 of clock chip U2, pin 6, pin 7 are connected with pin 12, pin 13, the pin 14 of single-chip microcomputer U1, the pin 1 of clock chip U2, pin 8 connect instrument battery (5), the pin 1 of single-chip microcomputer U1, pin 64 connect instrument battery (5), and the pin 63 of single-chip microcomputer U1, pin 62, pin 61 connect with reference to ground; The pin 5 of GPRS network communication module (4)-U4 connects with reference to ground, and the pin 6 of GPRS network communication module (4)-U4 connects instrument battery (5), the RF termination miniature antenna of GPRS network communication module (4)-U4.

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